The compression issues were just for loading cartridges for whatever reason. Everything else it said to compress it firmly. I asked them what “firmly” was but was given no response. I’m guessing it’s the crimping of cartridges that adds to the pressures created. They’ve since taken down all of their loading instructions concerning compression and reduction of loads, which weren’t for safety, but were to give a similar velocity as the standard (crappy) typical black powders available then.